terry, i have a usx but not for sale. as is my favorite trike, have my wife riding on an EZ-3 sx hooked on behind but would like to find an used usx myself as the 2008 and earlier usx's have a spring in the frame easing our rides.  turning quick on a sx will tip but the usx really is stable.  my wife has dementia and on medications which causes her to steer off into danger every once in a while so with the tandem set up she can ride and pedal safely behind me. i have a coupling made by gary arnold which works well.

i will kep your address and if i spot one i will let you know.  we are in our 70's and semi retired but love riding and use them for errands around home.  we live in moline, illinois.

 

walt wermuth